Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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The carrying amount of a life insurance policy on an officer, executive or employee for which the reporting entity (a bank) is entitled to proceeds from the policy upon death of the insured or surrender of the insurance policy.

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This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents the amount shown on an entity's books for investments in Federal Home Loan Bank stock.

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The gross amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns as of the balance sheet date.

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-Name Accounting Standards Codification

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Period which gives the right to exercise the option from date of grant in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Description of Business and Summary of Significant Accounting Policies (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Jun. 30, 2007	Jun. 30, 2004
Federal Home Loan Bank Stock [Abstract]
Federal Home Loan Bank stock	$ 1,600,000
Bank Owned Life Insurance [Abstract]
Bank owned life insurance	17,704,000	17,513,000		5,000,000	10,000,000
Federal Income Taxes [Abstract]
Unrecognized tax benefits	0	0	0
Unrecognized tax benefits interest and penalties	0	0	0
Stock-Based Compensation [Abstract]
Number of stock based compensation plans	1
Advertising Expenses [Abstract]
Advertising Expenses	$ 917,000	$ 1,100,000	$ 497,000
Stock Options [Member]
Stock-Based Compensation [Abstract]
Vesting period of stock option	5 years
Period to exercise option	10 years
Minimum [Member]
Covered Loans [Abstract]
Period within which loans past due	30 days
Minimum [Member] \| Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of premises and equipment	15 years
Minimum [Member] \| Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of premises and equipment	15 years
Minimum [Member] \| Furniture Fixtures and Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of premises and equipment	3 years
Maximum [Member]
Covered Loans [Abstract]
Period within which loans past due	89 days
Maximum [Member] \| Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of premises and equipment	40 years
Maximum [Member] \| Land Improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of premises and equipment	25 years
Maximum [Member] \| Furniture Fixtures and Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful lives of premises and equipment	7 years
City Bank
Covered Loans [Abstract]
Number of pools for FDIC assisted acquisitions	18
North County Bank
Covered Loans [Abstract]
Number of pools for FDIC assisted acquisitions	14